Method of forming folded strips of material



A. M. BARRETT METHOD OF' FORMING FOLDED STRIPS OF MATERIAL May 115, H923.

Filed OCT.. 6. 1919` 2 SheQiS-Sheec 1 @E no2 u @www "QZ HQZ @gu @MGZ @ngz @im noz @mm2 E@ @mk u@ u@ smnz Smm H E@ ,n @w naz E @ngz @mmm n E @m may B5, w23;

A. M. BARRETT METHOD 0F FOHMING FOLDED STRIPS OF MATERIAL Filed Oct. 6, 1919 2 Sheebsheet 2 P May 115,

STATE Lama u. mam. or rr .meer

which the following is a specification.

This invention relates 'to game-board plugs of the general character shown-in United States Patents Nos. 780,086 and 1,260,7 67 and more particularly to a crimped or perforated intermediary product, usually made of paper, and to methods and means for producin same, read for subsequent separation 0% the indivi ual plu means -of printin on both sides o f t e material to be used, t e-plug elements'orsections of 'the strip are collectively identified each by the same number on lone side and are Adiferentiated by respective serial numbers on the reverse slde, so that when the resultant plugs are eventually unfolded incident to their use, the ma each be identified both as to group an indlvidual relations.

eretofore it has been the ractice to Y erorate the strips of paper be' o re crimping or foldin but this has been the causeA of considerab e waste, for when `the paper is perforated deeplyyenou h to break of easlly after folding, it is lia le to fall a art" fol ing :facilitate greater speed and accuracy 1n folding or .crimping the paper and perorating same, ready for partition of the strip into sections or plugs such as required for punchboards; to enable the folding and perforation of the paper to be donesimultaneously and b the same means; to provide an interme iary product of im roved character in the form of a crimpe and perforated strip, in which the integral connections are relatively very small and the erforation Y slits are opened wide in foldin t e strip; to

provide a perforated and fo dedv strip of positive connections o minimum extent consistent withthe strength required to prevent breaking u or disintegration of the. strip by the usua handling preceding intentional partition into separate plugs; and to provide coactin mechanical meanslada vted to simultane'ous y perforate and fold't e strips proappumxm :nea caterer e, new.' as

.oratlng machine.

vailed heretofore, it has been necessar a uniform' series of naam.

- gressively asthey are fed Aforwarduniformly and continuously, and atthe same time to.

ap ly heat thereto for setting the creases.

t illustive embodiment of the invention is shown in the accompanying drawings,

in whichlFig. 1 is a plan of a for folding and'perforatlng.

1 Fig; '2 is aview off-the back side of a part thereof.

Fig. 3 is an enlarged view of the strip after passing through the machine.

.Fig. 4 is a view of the strip tightl' folded, read :for partition by tearm'g or reaking o't eplugs. f Y

Fig. 5 is a section on the line 5-5 of Fig. 4.'

ig. 6 is a plan of a' corner of a gameboard having perforations in which the plugsare inserted,a part of the tace covermbeing torn away. Y

ig. 7 is an enlarged end View of one of the plugs ready for use. v

Fig. 8 is a side view of a folding and per- Fig. 9 is a section en the line 9-9 of Fi 8. ig'. 10. is an enlarged fragmentaryview of the folding gears.

`Fig. 11 is'an end view of a group of coactingars showing both' the shearing 'and non-s caring features of the tooth edges.

Fig. 12 is a'section on the line 12-12 of..

ig. 13 is a circuit diagrambf the roll heater.

According, to the practice which has preto first perforate the strip and then su sequently-to fold the same, thereby requiring two separate machines and two independent operations.Y By this invention, means are organized in one machine for simultaneously perforating and foldin the strip, ready for subent partition w eneverl required.

In s. construction of the machine shown in the drawi the frame 1 is provided ywith a pair of mtermeshing rolls 2, said rolls being made in sections '3 arranged to intermesh respectively with corresponding sections on the opposites roll. The teeth d on coaxially adjacent sections are Y staggered symmetrically with respect to each other,

printed strip ready eov being ing with the several roller sections 3 are reversed with respect to each other, and the border lines 8 separating said sections of the paper are correspondingly sheared or perforatedA opposite the crests 9 and hollows 10 of the waves or folds as shown at. 11 on Fi 3 and 5, small integral connections 12 left midway between said crests and hollows.

The rolls 2 of said machine are to advantage dplaced one over the other adjacent to a fee platform 13, so as readily to permit of feeding the plain printed strips.

nearly horizontally between said rolls as shown in Fig. 1. Said platform is supported on brackets 14 integral with said frame. Said brackets are provided with lugs 15 Ato which the platform is attached by means of screws 16. Gage means or gluides 17 are the rolls;

Y The method of making the dplug stripls herein shown and described an the ap cation of same to punch boards are as ollows: y v

Power is applied for o erating the rolls, forinstance by the han e 20 and as the machine operates plain printed strips 5 are placed successive on the platform 13 and movedforward e gewise between the rolls,

a whereby said strips are simultaneously perforated and crimped, as shown in Fi 9 and 10. The stri issues in substantia the form shown in lli' folded ti htly by pressure, into .t e form shown in ig. 4, in which condition it may be ship d or stored ready for use.

'The ateral adjustment of the strip is taken, care ofv automatically by the gage means 17, which are desi ed and arranged to accommodate and position a stri of ex actly the right length to provide or a set of complete plugs.

tage ig. 5, whereu on it is ing them in the 4holes he unch board 23, Where they are subsequent y concealed by the outer coveringA 24, a corner of which is shown broken away in Fig. 6. In order to assure a more sitive setting of the creases and folds as t e strip ypasses throu h the machine, heat may to advanapplied coincidentally with the folding. For this purpose the rolls are preferably a ertured as at 25, and the recesses equippe connected as shown in Fi .13. Current is supplied from a source 'G rough slip rings and brushes as shown at 27, one pair being provided for each roll, aswill be understood. The roll sections 3 may be so formed and arranged, or the teeth 4 may be so designed, as not to require any specialshape at 19, though the form shown 1n Fig. 11 provides most positively for a definite connection between the shear cuts. The recise design will depend somewhat on t e particular grade of material to be handled. Although but one specific embodiment of this invention has been herein shown and described it will be understood that numerous details of the construction shown may be altered or omitted without departing` from the spirit of this invention as defined v by the following claims.

` I claim:

1. The 'method of formingv folded strips of material which'consists in perforating in one direction a sheet of the material to be used, 'and simultaneously folding said sheet in a direction transverse to the perforation line, and subsequently tearing oil' folded strips on the rforation lines.

2. The .method of orming` of material which consists 1n perforating be used, and simultaneously 'heating and folding said sheet in a direction transverse to the perforation line, and vsubsequently aaring olf folded strips on the perforation nes. a

191Sgned at Chicago this 3rd day of Oct.

ARTHUR M. BARRETT.

21 an insert.

with electric heater elements 26,`

folded stripsl I l rn one direction a sheet of the material to 

